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Academic Journal of Engineering and Technology Science, 2019, 2(4); doi: 10.25236/AJETS.2019.020410.

Sign of Frost-Free Heating Device for Air Source Heat Pump

Author(s)

Xinze Li, Xiang Zhang*, Jiacheng Li, Zhao Zhang,Zhihang Zhang

Corresponding Author:
Xiang Zhang
Affiliation(s)

Harbin University of Science and Technology, Harbin, China
*Corresponding Autho Email: 2605626017@qq.com

Abstract

An air source heat pump is an energy-saving device that utilizes a high position to allow heat to flow from a low-level heat source to a high-level heat source. However, when the ambient temperature is lower than 5 °C, frosting will occur at and around the evaporator vent and then freeze, thereby blocking the air passage of the heat absorbing device and affecting the normal operation of the host. Aiming at the deficiencies of the prior art, this paper designs an air source heat pump frost-free heating device, which is used to solve the problem that the existing air source heat pump is easy to frost, thereby blocking the air passage of the heat absorption device and affecting the normal operation of the host.

Keywords

Air source heat pump, Heating device, Low-temperature environment, Anti-frosting

Cite This Paper

Xinze Li, Xiang Zhang, Jiacheng Li, Zhao Zhang,Zhihang Zhang. Sign of Frost-Free Heating Device for Air Source Heat Pump. Academic Journal of Engineering and Technology Science (2019) Vol. 2 Issue 4: 71-75. https://doi.org/10.25236/AJETS.2019.020410.

References

[1] Song, M. ,  Deng, S. , &  Xia, L. (2014). A semi-empirical modeling study on the defrosting performance for an air source heat pump unit with local drainage of melted frost from its three-circuit outdoor coil. Applied Energy, vol. 136, pp. 537-547.
[2] Li, L. T. ,  Wang, W. ,  Sun, Y. Y. ,  Feng, Y. C. ,  Lu, W. P. , &  Zhu, J. H. , et al.(2014). Investigation of defrosting water retention on the surface of evaporator impacting the performance of air source heat pump during periodic frosting–defrosting cycles. Applied Energy, vol. 135,pp. 98-107.
[3] Dong, J. ,  Li, S. ,  Yao, Y. ,  Jiang, Y. ,  Tian, Y. , &  Tian, H. (2015). Defrosting performances of a multi-split air source heat pump with phase change thermal storage. International Journal of Refrigeration, vol. 55, pp.49-59.
[4] Huang, D. ,  Ri-Jing, Z. ,  Liu, Y. , &  Yi, D. B. (2014). Effect of fin types of outdoor fan-supplied finned-tube heat exchanger on periodic frosting and defrosting performance of a residential air-source heat pump. Applied Thermal Engineering, vol.69, no.1-2,p 251-260.
[5] Wang, W. ,  Xiao, J. ,  Feng, Y. ,  Guo, Q. , &  Wang, L. (2013). Characteristics of an air source heat pump with novel photoelectric sensors during periodic frost–defrost cycles. Applied Thermal Engineering, vol.50, no.1, pp.177---186.
[6] Liang, C. ,  Zhang, X. ,  Li, X. , &  Zhu, X. (2009). Performance Simulation and Analysis of New Solar Assisted Air-Source Heat Pump Heating System. International Symposium on Heating.
[7] Whipple, W. (1996). Refrigeration system with electrically controlled expansion valve. Applied Thermal Engineering, vol.17, no.4, pp.XVIII.
[8] Quan, Z. H. ,  Wang, G. ,  Zhao, Y. H. ,  Deng, Y. C. , &  Xu, P. . (2013). Experimental study of solar-air composite heat pump system. Advanced Materials Research, vol.827, pp.259-263.